Generally newborns can take probiotics when they have diarrhea. Because the reason why children have diarrhea symptoms, most of them are related to the disorder of intestinal flora. Probiotics, such as Pepcid, Mamma, etc., have a good role in regulating the disorder of intestinal flora, thus improving the situation of diarrhea in children. In addition, when giving children probiotics, the general course of treatment should not be too long, less than two weeks is recommended. If the duration is too long or the dosage is too large, it will interfere with the establishment of the normal intestinal flora of the child. If the child’s intestinal flora is not well established, there will be a prolonged diarrhea, which is relatively troublesome to treat. In addition, if the child has enteritis caused by bacterial infection, in addition to probiotics, anti-infection treatment such as cephalosporins should be used, and the treatment effect of probiotics alone is not very obvious. Overall, if a child has diarrhea, it is possible to take probiotics.